Valve-gear.



No. 806,138. 4 lPATENTED DEG. 5, 1905. Y W. P. HASKITT.

VALVE GEAR. APPLIOATION FILED mmm, 1905.

I simple connection `between the valve-rod and WILLIAM P. HAsKITT, oF-GwYNNvILLE, INDIANA.

' VALVE-GEAR.

Specification of Letters Patent.

Patented Dec. 5, 1905.

Application inea March 21, 1905.v serial No. 251,294..

To all `whom it may concern: V

Be it known that I, WILLIAM P. HAsKIT'r, a citizenof the UnitedV States,residing at Gwynneville, in the countyof Shelby and State of Indiana,have invented vcertain new and useful Improvements in Valve-Gear forIIngines; and I do hereby declare the following to be a full, clear,vand exact description of the invention, such as will enable othersskilled in the .art towhich it appertains to make and use the same.

My invention relatesl to valve-gear fo`r englnes, and more particularlyto mechanlsm Y for reversing the valve.

The objectvof the invention is to provide a its operating-eccentricwhereby the valve may 1 be shifted backward or forward without firstinterfering with the operation of the engine.

With the above` and other objects in view the invention consists of apower-shaft having an eccentric thereon, which is surrounded by andadapted to actuate an eccentric-ring, which in turn is surrounded by aneccentric-strap connected in the usual manner to the slidevalve of anengine. VBy shifting the eccentricvring the relation between the-strapand its operating-eccentric can be changed, thereby imparting movementto the slide-valve, so as to reverse the engine during the operationthereof. 4

The invention also consists of the further Y novelconstructionsandcombinations of parts hereinafter more fully described,and pointed out in the claims.

In the accompanying drawings I have shown the preferred form ofmyinvention'.

In said drawings, Figure lis a view, partly in elevation and partly insection, of an engine having my improved valve-gear thereon. Fig. 2 isan elevation showing the eccentric and, its operating mechanism detachedfrom the engine, the eccentric-ring being illustrated in a differentposition. from kthat shown in Fig. 1. This figure-also shows-in dottedlines another position to which the eccentric-ring vmay-be adjusted.Fig.v 3 `is a detail view of the eccentric-ring.

Referring to the figures by numerals of reference, 1 is aj power-shafthaving a iiywheel 2, such as is ordinarily employed, and this 'shaft isadapted to be propelled in the usual manner by a piston 3, located inthe engine-cylinder 4. An eccentric 5 is secured to and rotates with theshaft 1, and inclosingv this eccentric and slidably mounted upon it isan eccentric-ring 6, preferably formed of sections, which are heldtogether upon opposite sides of the eccentric 5 by means of bolts orscrews 7, extending through ears integral with this eccentric-ring isgrooved to form a guidelway for a strap 9, which 1s secured 1n any -thesections of the ring. The periphery of preferred manner around the ring6, and is r fastened to one end of a rod 10, which in turnis pivoted toa rodv 11, extending from the slide-valve 12 of the engine. An arm 13 isrigidly secured to ring 6 and pivoted to a link 514:, which in turn ispivotedto oneend of a pivoted supporting-bar 15.' A rod 16 is alsopivoted tothis bar l5 and to an operating-lever 17, having means. forsecuring it in any position to which it may be adjusted.' l

It will be understood that by shifting lever 1 7 upon its fulcrumthewidest portion of ring 6 may be moved into position between the strap9 and any portion of the periphery of eccentric 5. In other words, thisportion of the ring can be shifted into any'desired relation to thehorizontal plane extending through shaft 1. It will be understood thatwhen the ring is in the position shown in Fig. 2 the distance betweenshaft land the sliding valve 12 is greater than when the ring 6 is inthe position shown in Fig. 1. If therefore the engine is operating Whilethe parts are in the positions shown in the first figure and it isdewhich may be transmitted thereto through the ordinary operation of theeccentric, and this movement will be suIicient to cause the reversal ofthe operation of the engine.

It will be. seen that the device is very sim-r,

IOO

ple and durable lin construction and dispenses Y with numerous andintricate parts which are liable to break or otherwise-get out oforder.

.Inthe foregoing description I have shown the preferred form of myinvention; but I do not limit myself thereto, as I am aware thatmodifications may be. made therein without departing from the spirit orsacrificing the advantages thereof, and I therefore reserve the right tomake such changes as fairly fall within the scope of my invention.`

Having thus fully described my invention,

what I claim as new, and desire to secure by v Letters Patent, is-

1. The combination with an engine having a slide-valve; of a rotatableeccentric, a strap surrounding the eccentric and connected to theslide-valve, a ring of varying width interposed between the eccentricand the strap, means for manually rotating said ring independently ofthe movement of the eccentric and strap, and means for locking the ringin adjusted position.

2. The combination with an engine having a slide-valve; of means forreversing said engine comprising a rotatable eccentric, a strapsurrounding the eccentric and connected to the slide-valve, a ring ofvarying width interposed between the eccentric and the strap, and meansfor manually rotating said ring independently of the movement of theeccentric and strap for shifting the valve to reverse the engine.

3. The combination with an engine having a slide-valve; of means forreversing said engine comprisinga rotatable eccentric, the strapsurrounding the eccentric and connected to the slide-valve, a ring ofvarying width interposed between the eccentric and the strap, an armextending from the ring, an operatinglever, connecting devices securedto the arm and lever, and means for locking the lever in any position towhich it may be adjusted.

In testimony whereof I have signed my name to this specification in thepresence of two subl scribing witnesses.

WILLIAM P. HASKITT.

Witnesses:

W. W. WILcoXoN, D. H. WILooXoN.

